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1998

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Full-Text Articles in Engineering

Flight Physician - November, 1998, Civil Aviation Medical Association Nov 1998

Flight Physician - November, 1998, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A twelve page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.


Model For Trace Metal Exposure In Filter-Feeding Flamingos At Alkaline Rift Valley Lake, Kenya, Yarrow M. Nelson, Ramesh J. Thampy, Gideon K. Motelin, Jackson A. Raini, Cynthia J. Disante, Leonard W. Lion Nov 1998

Model For Trace Metal Exposure In Filter-Feeding Flamingos At Alkaline Rift Valley Lake, Kenya, Yarrow M. Nelson, Ramesh J. Thampy, Gideon K. Motelin, Jackson A. Raini, Cynthia J. Disante, Leonard W. Lion

Civil and Environmental Engineering

Abstract—Toxic trace metals have been implicated as a potential cause of recent flamingo kills at Lake Nakuru, Kenya. Chromium (Cr), copper (Cu), lead (Pb), and zinc (Zn) have accumulated in the lake sediments as a result of unregulated discharges and because this alkaline lake has no natural outlet. Lesser flamingos (Phoeniconaias minor) at Lake Nakuru feed predominantly on the cyanobacterium Spirulina platensis, and because of their filter-feeding mechanism, they are susceptible to exposure to particle-bound metals. Trace metal adsorption isotherms to lake sediments and S. platensis were obtained under simulated lake conditions, and a mathematical model was …


Santa Clara Magazine, Volume 40 Number 3, November 1998, Santa Clara University Nov 1998

Santa Clara Magazine, Volume 40 Number 3, November 1998, Santa Clara University

Santa Clara Magazine

8 - EARTHBOUND IN TUSCANY By Susan Vogel. Cultivating the soil and restoring a Tuscan farmhouse became regenerative physically and spiritually for SCU English professor Edward Kleinschmidt.

14 - PREMIES By Sue Frey. Kathy (Straus) VandenBerg '66 pioneers a rule-defying path, as she puts tenderness and love above tubes and isolation in caring for premature newborns.

18 - SEA HUNT By Connie Hinckley. SCU SCREEM team members probe the blue-black waters of the Arctic Ocean for historic bounty using high-tech robotics.

26 - THE VILLAGE PEOPLE By Kathleen (Nino) Castello '88. Some 40 years ago a community of ex-GIs and …


The Effect Of Cold Forming On Type 3cr12 Square Tubes, Rudolph Laubscher Oct 1998

The Effect Of Cold Forming On Type 3cr12 Square Tubes, Rudolph Laubscher

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

A non linear finite element simulation is conducted which completely simulates the forming of the tube from flat virgin plate to its final shape. The predicted residual stresses and amount of cold forming in the tube sides and comers are then compared to actual experimental data from cold formed tubes where the initial material properties and the material properties after the cold forming process are known. This illustrates the usefulness of the non linear finite element method in predicting how the material properties change during cold forming and gives a useful insight in what the actual condition of the material …


The Local Buckling Strength Of Partially Stiffened Type 3cr12 Stainless Steel Compression Elements In Beam Flanges, G. J. Van Den Berg Oct 1998

The Local Buckling Strength Of Partially Stiffened Type 3cr12 Stainless Steel Compression Elements In Beam Flanges, G. J. Van Den Berg

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

In this study the effect of the non-linear behaviour of stainless steels on the local buckling strength of partially stiffened compression elements in beam flanges is studied. The steel under investigation is Type 3CR12 stainless steel. Lipped channels were placed back to back to form a doubly symmetric lipped I-section. The different pIasticity reduction factors suggested in the ASCE3 and South African13 stainless steel design specification for stiffened and unstiffened compression elements are used to compare experimental results with theoretical predictions. It is concluded that the ASCE3 and South African13 stainless steel design specifications overestimate the local buckling stress in …


Modern Water Control And Management Practices In Irrigation: Impact On Performance, Charles M. Burt, Stuart W. Styles Oct 1998

Modern Water Control And Management Practices In Irrigation: Impact On Performance, Charles M. Burt, Stuart W. Styles

BioResource and Agricultural Engineering

This research addressed the basic questions of what levels of water delivery service are presently provided by irrigation projects having some aspect of modernization; what hardware and software features impact those levels of service; whether modern water control and management practices in irrigation make a positive difference in performance; and what universal lessons can be learned and applied.


1998 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library Oct 1998

1998 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library

Scholars and Artists Bibliographies

This bibliography was created for the annual Friends of the Michael Schwartz Library Scholars and Artists Reception, recognizing scholarly and creative achievements of Cleveland State University faculty, staff and emeriti


Bs News Oct 1998

Bs News

Building Services Engineering

No abstract provided.


Magma Traps And Driving Pressure: Consequences For Pluton Shape And Emplacement In An Extensional Regime, John Patrick Hogan, Jonathan D. Price, M. Charles Gilbert Sep 1998

Magma Traps And Driving Pressure: Consequences For Pluton Shape And Emplacement In An Extensional Regime, John Patrick Hogan, Jonathan D. Price, M. Charles Gilbert

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The level of emplacement and final form of felsic and mafic igneous rocks of the Wichita Mountains Igneous Province, southwestern Oklahoma, U.S.A. Are discussed in light of magma driving pressure, lithostatic load, and crustal magma traps. Deposition of voluminous A-type rhyolites upon an eroded gabbroic substrate formed a subhorizontal strength anisotropy that acted as a crustal magma trap for subsequent rising felsic and mafic magma. Intruded along this crustal magma trap are the A-type sheet granites (length/thickness 100:1) of the Wichita Granite Group, of which the Mount Scott Granite sheet is typical, and smaller plutons of biotite bearing Roosevelt Gabbro. …


Adaptive Bootstrap Signal Separators For Bpsk/Qam-Modulated Wireless Cdma Systems In A Multipath Environment, Nico J.M. Van Waes Aug 1998

Adaptive Bootstrap Signal Separators For Bpsk/Qam-Modulated Wireless Cdma Systems In A Multipath Environment, Nico J.M. Van Waes

Dissertations

CDMA is an attractive multiple-access scheme, because of its potential capacity increase and its anti-multipath fading capability. For satisfactory performance, however, the effect of the "near-far" problem has to be resolved. This problem can be combated by using power-control, which, however, results in an overall reduction in communication ranges, and thus in a loss of capacity. Among other methods for mitigating the near-far problem is the use of decorrelating receivers, both of fixed type, which directly utilizes the cross-correlation of the users codes, and of adaptive type, which uses recursive algorithms that leads to signal decorrelation. Not to lessen the …


Santa Clara Magazine, Volume 40 Number 2, August 1998, Santa Clara University Aug 1998

Santa Clara Magazine, Volume 40 Number 2, August 1998, Santa Clara University

Santa Clara Magazine

8 - THINKING ON THEIR FEET By Tegan McLane. A renowned choreographer coaches SCU dance students to craft bold, new expressions.

12 - MARRIED IN THE MISSION By Tegan McLane. Alumni remember returning to SCU for the most precious - and sometimes the most traumatic- days of their lives.

20 - THE GOOD DEATH By Connie Hinckley. Can physician-assisted suicide provide death with dignity as Oregon voters think?

26 - LET THEM EAT WINDOWS By Susan Vogel. An SCU symposium takes a close look at Microsoft, which grew from a little company that could to an engine geared to outdistance …


Ccfss News August 1998, Wei-Wen Yu Center For Cold-Formed Steel Structures Aug 1998

Ccfss News August 1998, Wei-Wen Yu Center For Cold-Formed Steel Structures

CCFSS Newsletters (1999 - 2008)

No abstract provided.


1998 - The Third Annual Symposium Of Student Scholars May 1998

1998 - The Third Annual Symposium Of Student Scholars

Symposium of Student Scholars Program Books

The full program book from the Third Annual Symposium of Student Scholars, held on May 8th, 1998. Includes abstracts from the presentation and posters.


Reducing Machine Downtime Through Improved Material Flow, Robyn Hoenle, Walter Teamer, Steve Toner Apr 1998

Reducing Machine Downtime Through Improved Material Flow, Robyn Hoenle, Walter Teamer, Steve Toner

Honors Theses

The goal of a local manufacturer of garment and craft patterns is to maximize its profits. To achieve this goal, several processes within the plant must work efficiently independently and in conjunction with each other. In doing so, some of the issues that must be addressed include maximizing efficiency, reducing downtime, simplifying process layouts, and combining processes to ultimately provide a quality product to the customer. The manufacturer is presently experiencing excessive downtime in the packaging area because of excessive material handling. The task of the project team was to work in conjunction with the manufacturer to analyze and evaluate …


Past Proceedings: Fourth International Conference On Case Histories In Geotechnical Engineering, St. Louis (1998), Multiple Authors Mar 1998

Past Proceedings: Fourth International Conference On Case Histories In Geotechnical Engineering, St. Louis (1998), Multiple Authors

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

No abstract provided.


Preface, Shamsher Prakash Mar 1998

Preface, Shamsher Prakash

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Past Proceedings: Second International Conference On Case Histories In Geotechnical Engineering (1988), Multiple Authors Mar 1998

Past Proceedings: Second International Conference On Case Histories In Geotechnical Engineering (1988), Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Past Proceedings: Third International Conference On Case Histories In Geotechnical Engineering (1993), Multiple Authors Mar 1998

Past Proceedings: Third International Conference On Case Histories In Geotechnical Engineering (1993), Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering (1984), Multiple Authors Mar 1998

Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering (1984), Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.


Calculated And Observed Settlements Of Multistory Building Founded On Loess, Sasha D. Milovic, Zuhtu S. Ozden, George S. W. Chow Mar 1998

Calculated And Observed Settlements Of Multistory Building Founded On Loess, Sasha D. Milovic, Zuhtu S. Ozden, George S. W. Chow

International Conference on Case Histories in Geotechnical Engineering

ln the Paper are presented the results of laboratory and field tests which were carried out on loess soil in Belgrade In order to determine the type of the foundation for the 13-storey building a preliminary investigation was made. In this phase of investigation exploratory borings and sampling were performed in a standard way. On the basis of the available laboratory and field test results it was concluded that the soil was made of macro porous land loess 14-20 m in thickness. lt was found that the loess on this location had the dry density varying between the limits γd …


Failure Of A Pipeline In An 800-Year Old Debris Fill, D. G. Anderson, C. C. Sundberg, R. J. Robertson Mar 1998

Failure Of A Pipeline In An 800-Year Old Debris Fill, D. G. Anderson, C. C. Sundberg, R. J. Robertson

International Conference on Case Histories in Geotechnical Engineering

In June of 1994 a 20-m section of 1.4-m diameter, restrained-joint, ductile iron pipe failed during construction of a new section of water pipeline for the city of Cairo in the Arab Republic of Egypt. The failure occurred in an area where the pipe was supported on piles, and compacted silica sand was used as side support for the pipe. Soil above the crown of the failed section of pipe was 6 m or more in thickness. Results of a detailed review of the failure revealed that a number of unique and related factors apparently caused the failure. The most …


Bs News Feb 1998

Bs News

Building Services Engineering

No abstract provided.


Critiquing Critiques Of Profiling In Aviation Security Screening Programs: Why The Aclu Has It Wrong, Ibpp Editor Jan 1998

Critiquing Critiques Of Profiling In Aviation Security Screening Programs: Why The Aclu Has It Wrong, Ibpp Editor

International Bulletin of Political Psychology

This article provides commentary on the American Civil Liberty Union's (ACLU) criticisms of the Computer Assisted Passenger Screening System (CAPS) that was developed under the auspices of the Federal Aviation Administration (FAA) to support aviation security.


Fm 34-54, Technical Intelligence, 30 January 1998, Robert Bolin , Depositor Jan 1998

Fm 34-54, Technical Intelligence, 30 January 1998, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This manual defines and describes the technical intelligence mission. It names the key technical intelligence organizations involved at the national level and their interrelationships and responsibilities.

The manual describes in detail the technical intelligence organizations and operations in a US command in the field. It discusses at length the responsibilities on the key staff sections in the command.

It has extensive appendices explaining forms and procedures used by forces in the field. It has an excellent list of acronyms and glossary.

Comment by the depositor

A clear understanding of the evolution of technical intelligence may not be needed by the …


Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 14, Number 1, January 1998, College Of Engineering And Computer Science, Wright State University Jan 1998

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 14, Number 1, January 1998, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

A fourteen page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.


Relationships Among Grain Sorghum Quality Factors, Roberto A. Buffo, Curtis L. Weller, Anne M. Parkhurst Jan 1998

Relationships Among Grain Sorghum Quality Factors, Roberto A. Buffo, Curtis L. Weller, Anne M. Parkhurst

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Correlations among grain sorghum quality factors (proximate composition, physical properties, and water absorption properties) were evaluated. Samples of 46 commercial hybrids (24 and 22 from crop years 1993 and 1994) were analyzed for starch, protein, crude free fat, test weight, absolute density, 1,000 kernel weight, percent kernel abraded, water absorption index, initial water absorption rate, and moisture saturation point. Test weight, absolute density, and percent kernel abraded were positively correlated among themselves (r > 0.5). Protein was negatively correlated with both test weight and absolute density (r < -0.5), while moisture saturation point showed negative correlations with test weight, absolute density, 1,000 kernel weight, and percent kernel abraded (r < -0.4). Principal component factor analysis through the covariance matrix explained 95% of the total variation of quality factors among hybrids (two factors), and, through the correlation matrix, 85% of the total variation (five factors). Water absorption rate decreased with increasing starch content of grain sorghum kernels as water absorption rate increased and amount of water for saturation decreased with softening of kernels.


Optical Digital Fragmentation Measuring Systems -- Inherent Sources Of Error, Norbert H. Maerz, Wei Zhou Jan 1998

Optical Digital Fragmentation Measuring Systems -- Inherent Sources Of Error, Norbert H. Maerz, Wei Zhou

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Automated optical imaging systems of measuring fragmentation are increasingly being used in the mining, comminution, and materials handling industries. These methods have been well received in many of the industries involved. Considering that in many of these applications there are no alternative ways of sizing material, having even a rudimentary measurement of size distributions allows evaluations of explosive, blast design, detonator performance, crusher and milling performance, and material degradation due to transport.

Optical methods have inherent limitations, which reflect on accuracy, precision, and reproducibility of measurement results. This stems from the fact that there are myriads of variables, which affect …


Methods For Predicting Shale Durability In The Field, Paul Michael Santi, Jerry D. Higgins Jan 1998

Methods For Predicting Shale Durability In The Field, Paul Michael Santi, Jerry D. Higgins

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Durability of shales and other weak rock is an important parameter describing the material's susceptibility to breakdown upon exposure to water or during construction work. While laboratory methods have been developed to measure durability, no correlations between laboratory results and simple field tests have been determined. The results of this study show that certain field parameters can predict slake durability with acceptable accuracy. The recommended field tests, in order of desirability, are slake index, jar slake, hammer rebound, and NGI "Q" value. Single variable and multiple variable linear regression equations are given, including equations conservatively modified so that 95% of …


Proposed Model Rules Governing The Admissibility Of Computer-Generated Evidence, Lynn Mclain, James E. Carbine Jan 1998

Proposed Model Rules Governing The Admissibility Of Computer-Generated Evidence, Lynn Mclain, James E. Carbine

All Faculty Scholarship

Pursuant to a grant from the State Justice Institute, the Court of Appeals of Maryland Standing Committee on Rules of Practice and Procedure drafted, and the Court of Appeals adopted, model rules regarding computer-generated animations and simulations. The rules address discovery, pretrial rulings, and preservation of the record for appeal.


Production Of Ethers Of Gycerol From Crude Glycerol: The By-Product Of Biodiesel Production, Hossein Noureddini, W. R. Dailey, B. A. Hunt Jan 1998

Production Of Ethers Of Gycerol From Crude Glycerol: The By-Product Of Biodiesel Production, Hossein Noureddini, W. R. Dailey, B. A. Hunt

Papers in Biomaterials

Methyl esters of fatty acids (also known as biodiesel), made from the transesterification of vegetable oils and animal fats with methanol, have shown a lot of promise as alternative diesel fuels. Glycerol is the inevitable by-product of the transesterification process. While there are existing markets for glycerol, a significant increase in availability of glycerol, resulting from the expanded use of vegetable oils and animal fats, would destabilize the glycerol market. Direct addition of glycerol to the fuel is not possible, however, derivatives of glycerol such as ethers have potential for use as additives with biodiesel, diesel or biodiesel-diesel blends. In …